FIELD: electricity.
SUBSTANCE: asynchronous machine (VAMOGW) includes frame (1) with multipack stator (2) with winding (3), at monolithic shaft (6) made of steel 20X13 there is multi-pack rotor (7) with copper bars (8) and cafe rings (9). Between packs of stator (2) and rotor (7) there is non-magnet gap (5) through which cooling stratum water passes. In order to prevent contact corrosion of electric steel of stator and rotor packs and copper of rotor winding discs (10) of magnesium alloy are pressed-fit between packs on rotor shaft and rings (4) of the same alloy are pressed-fir between stator packs. Discs (10) and rings (4) have close electric contact with packs of rotor (7) and stator (2).
EFFECT: effective electrochemical protection from contact corrosion for internal parts of multipack rotors and stators of vertical open electric machines at their immersion to aggressive stratum water - electrolyte.
3 dwg
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